package cn.tedu.sp06.controller;

import cn.tedu.sp01.pojo.Item;
import cn.tedu.sp01.pojo.Order;
import cn.tedu.sp01.pojo.User;
import cn.tedu.web.util.JsonResult;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

import java.util.List;

@RestController
public class RibbonController {
    @Autowired
    private RestTemplate restTemplate;

    @GetMapping("/item-service/{orderId}")
    @HystrixCommand(fallbackMethod = "getItemFB")
    public JsonResult<List<Item>> getItem(@PathVariable String orderId){
        // {1} restTemplate工具定义的占位符
        return restTemplate.getForObject("http://item-service/{1}",JsonResult.class,orderId);
    }

    @PostMapping("/item-service/decreaseNumber")
    @HystrixCommand(fallbackMethod = "decreaseNumberFB")
    public JsonResult decreaseNumber(@RequestBody List<Item> items){

        return restTemplate.postForObject("http://item-service/decreaseNumber",items,JsonResult.class);
    }


    @GetMapping("/user-service/{userId}")
    @HystrixCommand(fallbackMethod = "getUserFB")
    public JsonResult<User> getUser(@PathVariable Integer userId){

        return restTemplate.getForObject("http://user-service/{1}",JsonResult.class,userId);
    }

    @GetMapping("/user-service/{userId}/score")
    @HystrixCommand(fallbackMethod = "addScoreFB")
    public JsonResult<?> addScore(@PathVariable Integer userId, Integer score){

        return restTemplate.getForObject("http://user-service/{1}/score?score={2}",JsonResult.class,userId,score);
    }


    @GetMapping("/order-service/{orderId}")
    @HystrixCommand(fallbackMethod = "getOrderFB")
    public JsonResult<Order> getOrder(@PathVariable String orderId){

        return restTemplate.getForObject("http://order-service/{1}",JsonResult.class,orderId);
    }

    @GetMapping("/order-service/")
    @HystrixCommand(fallbackMethod = "addOrderFB")
    public JsonResult<?> addOrder(){

        return restTemplate.getForObject("http://order-service",JsonResult.class);
    }


    ///////////////////////以下是fallbackMethod/////////////////////////////////////


    public JsonResult<List<Item>> getItemFB(String orderId){

        return JsonResult.err().msg("获取商品信息失败！！！");
    }

    public JsonResult decreaseNumberFB(List<Item> items){

        return JsonResult.err().msg("减少商品库存失败！！！");
    }


    public JsonResult<User> getUserFB(Integer userId){

        return JsonResult.err().msg("获取用户信息失败！！！");
    }

    public JsonResult<?> addScoreFB(Integer userId, Integer score){

        return JsonResult.err().msg("增加用户积分失败！！！");
    }


    public JsonResult<Order> getOrderFB(String orderId){

        return JsonResult.err().msg("获取订单信息失败！！");
    }

    public JsonResult<?> addOrderFB(){

        return JsonResult.err().msg("添加订单失败！！！");
    }

}
